Method of conditioning paper preparatory to printing thereon.



l. E. DOYLE.

METHOD 0F CONDITIONING PAPER PREPARATORY T0 PRIN'HNG THEREON. APPLICMIQN mm 0m22.191s.

Patented Aug. 22), 1916.

i La` -1l gl l l ft 12".

35 with:`

. mirino sri-rens PATENT (riemen,4

JAMES E. DOYLE, F CLEVELAQ'L,

METHOD OF CONDllTION'XNG P PER FREPARA'ORY T0 PRINTING TEREON originaria-Application fiied Jiiiy 26, i913,

T all whom may" concer/ri:

BeY it known that I, JAMES E. `v citixen of 'the United AStatesies. i Cleve-land, in thecounty of C .yalioga and State of Ohio, have invented a new and useful Iiiipi'oveinent in Methods oi'ioiiditioningr Paper Preparatory to Prin ting Thereon', of which A the following is'a'specifiration, the i principle-of the. invention being herein explaincd, and the best inode iii which I have conteii'iplated applying that principle, so asv to d'lstinguish .it from other inventions.

The invention to be herein explained is closely indicated bythe title. The object is the accomplishment. of. the desiredl resultwi'ithout disturbing .the ycontinuity 0f procedure. of the ordinary printi ingoperation. l

Every printeixis familiar with the ocrasional disalinenient of adjacentlines of type on veither single, successive. or alternate she-, tsp It is also known thatfthis is'due to a comparatively slightuthough irregular stretcliiiigrv ofi those particular sheets dur ing their come-'ance All paper sheets are capable of being and therefore frequently are unintentionally stretched to a varying' extent. In certaiii'instances this' estent may exceedan eighth of an inch. Furthermore any stretchingr thus eli'erte-ii necessarily not uniforiu. 'hen this happens in even less appreciable in-asui e. the ii'iiiforiiiity in alineiiient of the type to be subsequently `impressed thereon is seriousiv interfered M v invention overcoi ythis deleterious propensity of paper .i'hirl'i till now ererfircasioned concern because of the likelilioo'd of defective sheets. During the op eration of a press supplied u'ii'ii in v inven- 40 tion. the sheets are stretched smoothed. or

roiied out by their incalculable retardation while passingr suitioii now/Jrs. he paper being' drawii toward these as shov-:n iii Fig' ure I, and such stretching is moreover as uniformly distributed as possiliie throughout the extent of that diiiiensiiiii which is substantially transverse to the course of travel; My exeiiiphiyiiig roi'isiruction iiivolves the eiiiplfi-i'iiiriit of a lineal siii-tion of sufiicieiit foi-re to arcoiiipiisii t without itself becoming the cause of auf7 disarraiigenient of some. portion of the sheet with respect to another portion thereof,

'hen printing diterent coiers by suc- Specificaticii ot Letters Patent.

' kliiigrr or even partial creasingfof OHIO, ASSIGNOR OF ONE-HALF TO C. Si BRITTONpO'F CLEVELAND, OHIO.

Patenten Aug. 29,3191@ cessi ve impressions upoirtliesaine sheet, .my invention permits the added advantage of insuring` a. perfect register. AS thep'aper passes the. nozzles the warp and stretch is Serial No. 81-306. Divided and this application tiled 2 2;

1913. Seria'i No. 808,160.

taken out .of it at that poi'ntj instead ofronthe forni of the first color.' This does caused' by the slight stretch of the Sheet when the first color isV printed as heretofore under ordinary conditions. On second revo.- liition-of the press all the dirt left from the under side of the sheet is'collectedbefore it i has a chance to reach the form. Ordinarily, a great deal of dirt is carried?, vl( into the fountain by the rollers afterth .passerelthe' type forms, rendering the 'ink 4unfit-ffm' My invention prevents-thisrand--seslarge percentagof ink asm HSE.

I)oub'tless,' i paper vSheets have stretched before in association"with:` that' arts. 'Moreover, several pittentsinluil i.

'sof away witlirthe variation from true lie ister j between therfrst and second colois t at isthe applicants nuinberedf'1,043,812-,bes11es' tiulai-.art of printing vpatentable invention.

yThe essence of the present conception-attaches itself to thel successful control'ofa suction of sufficient vforce to. stretch paper sheets subjected thereto without causing the moving sheet to be drawnrout ofline 'with the prescribed direction of ,lts'tvper Suchdisarraiigeiiient could cause the a reas. Il have contrived not only to exert a suction of substantially constant force acrossV the moving sheet, b ut initially.` that is in proximity to such sheet. at an oblique angle,

zioY

in fact aloii,f Y a diagonal line. with respect.

thereto through a series of passages inlined iii a direction transverse to the passing direction of movement of the sheet. Each passing sheetofpaper. is {NU'lWSkfly stretched in advance ,of .receiving an im` pression from the type and all irregularities in the work therebj7 avoided.

Directing attention to the drawings:- Fig'. I is.l a plan'of the ront part of a printing press showing the manner in which imy inventive method may be applied in conjunction therewith. Fig. II is wawyertical section of a detail involved in "'tlie practice of my method in' operative proximity to a portion of thesheet con; veye'rgglifkewise shown in section. Fig. III lo is a plan of the detail represented in Fig. .f Il showing certain parts bi'okcn'away. Fig.

'the detail seen in Figs. II and III.

I have deemed it advisable to employ la throughout the description the identical sys- -temv of 'letters designating the respective parts-asapp'ear in my co-pending principal applica-tion earlier identified.- It may be ,-zi-.fwogithyof note also that the four vfigures zo showiitii'i this application correspond with cw'ffFigsfI, VII, V and VI respectively, of4 the if'f'such lpending application. As exemplified "bythe several views selected for the drawing, 2 :M my methodA may be associated with a print- -ing Lpress of the cylindrical sheet conveyor type in which sheets of paper are carried if'around 'upon the surface offa cylinder prior if to being'A given the impression of the type.

' The' supporting frame as a. whole is 'des- Y .'ignated by the reference character A,A and is provided with a gear ,guard diga 'part'of which is brokenaway in I to disclose ysiichgear which comprises a part ofA the 'driving mechanism. Thej frame A isffur` 3 5 f tliermore provided atf'opposite ends'with i' primary bearings@2 forthereception of the cylindertsha'ftg' and with secondary bear'- ings i -for thereception o fga' member forming one part of this vimprovement'. The 4o .having'end ofthe frame i s formed with a 'I uga.

fl vAvd'rving' shaft B is mou x ted" in the bear- Yirgs a2 and supports a cylindricalsheet con- .veyer b', having an/niilar metal rims. b at 4 5 each end and a peripheral gapb to permit fof-the movement therethrough at predeter- `minedinte'rvals ofthe sheet` .gripping mech- .;anism.-. The shaft is provided-.at one end with -a gear b* to be connectedwith power mechanism not shown, though intended `to rotate the cylinder in the direct-ion indicated by the arrows. The gear 'bfis formedjwith an annular extension 'bs Aandthis extension is inturn'fashioned with the camY b the".

v function of which, corresp'oiids'v precisely with that-assigned the cam of my structural application i ..Moiinted for oscillatory movement in the :secondary bearings a3 is a rod I). This rod is'embra'ced inwardly adjacent each ofA its t J'Glnals by upper and lower caps d1 and al respectively, and these caps are secured with 1 respect to each other by means of .bolts or screwsindicated in Fig. I. A liixcd in a. dc-

' pending'positon to the caps de through the IV is a front' elevation of one portion of is mounted. This roller -is operatively dislof the caps av A angle d supports intermediately of its' ends "and in fact Awithin the two vertical planes of ports a member d likewisev attachcdithereto by rivets appearing in Fig. I.v This member is of complementary angle shape formation below, and projects upwardly in a direction tangential to the surface of' the cylinder. A tension spring d5 connects this member, whose function is in the 'nature of a trunnion, with the lug afor the purpose of controlling the movement of theformer, as will be presently explained. This latter'I havego markedI separately as d6, and it has an up- 'Wardly projectingA ear d'7 to which one end of the spring is actually fastened. Mounted for adjustment inthe-trunnion d6 is a, forked member cls, in the en d of which a roller d posed in the same vertical plane as the cam b and is adapted to lic-engaged thereby. As

- will now be apparent, the intermittent en- A Extending across so as to 'rest upon and' be secured in any suitablemanner to an angular shaped formation d" onV the upper surface 'l isanother angleV dw.' This the annular rims b2, constructions similar tov `that just described. IEach of the latter com.-

prisetrunnion members d in which forked rods 'dw are loosely mounted. These vlast 'lpientioned rods each supports a roller d adapted to engage4 the annular rims b2. The fixing'of the rods d, in various positions with respect to the trunnions d is also suggested as `capable of accomplishment by axially and transversely extending setscrews d" and al18 respectively. The purpose of the rollers all is to limit the extent of 'oscillation toward the cylinderofgth'e rod I) and necessarily whatever structiirelmay demands .of successful operation.

A manifold F extends substantially parallel with the shaft B and has-a plurality of, and in this instance eight, branch inlets'fl projecting in the directionof the cylinder. Inclosing the ends of these inlets are al corresponding number of hose lengths f2. The other or rear side of the manifold F is provided with a single medial outlet f3 with 125 which a duct f" connects and an electri cally operated suction fan f5 is connected with the other open extremity of this duct f. Connected with opposite ends of these hoselengthf.' are a corresponding number of nozare. ned latmfilly 'tion to pre-sont :in eloir l Sinrnount d over this inlet opanihfr cach case is flange f having :i pl tranfzvcrso Screvr-tliread opening upper of erich of tho, mail also fashioned near opg-ru* ho fnnd o ch of this; with it 'cir-thr aided profit-'so Ysoon to he; manifest '.,lezz f :tra rigidiv sectorial 1';-

mg-.zirir of sk ws iu Y througli the .latter as. reprcsentcii in do? lines in il.

An fili The for Y bracket fashioned' with. n corr i' elongated recess in which' the @Y is seated-"lt iS this` brush. vv'hich. 'tended to ontact th'epziper sheets; whict being c'firriedzirourrd on'gtlh sort. cylinder and in so doing'tzikoup the in arid thot the sheet.. is 'mimi therefor Y. at'the'brtislrrincidcn" in the, firlnient'ff thisl invontilon h: ing 'rho shoe; to thosuction algen tho lait-'tor ina-y yl "c."r'ii :1 ofiiczicioil 4rlieroinori.v iin-other Wort' he Sheet wi i' m 1 it 'ai-gire ai" c if) is o' thereof made to ar;-

.. film,

niftizi'g affianco of this 'im-Y los .in-thc operation of mur-,nfs wcfeirthc. imaging sheets und 'of the nozzles prope* lj.' register-'ing with the. inlet openings: f". Yh'cnirg 'pzirtition fs inci-lei'italiy FiglV. Th mips G :ir to the. Einiges as a. close niech plurality scrcA'sijJ? pas; 1r: the sr: rt led 'or ings whirh y bean mentioned put iiiiri'n. nortiifns of the, :nu G iif'hi i -i inA wir we I?) r forward f 2f ifiA i A`v:idin

`ntcd r fier-po is in li. lA a Set extends ohliip 'f downward from thc 'sheet occurs. A

4thorium-c. li exrted .i

front upper edge of the caps to' communivfith the opening g1 undv indirectly therfor@ with the nozzle. While they are in the present instance shown tombe 'parallel3 they med not necessarily he so', nor must they 70 necessarily have to be straight, nor all alike to any one. 0r every dimenion.- Y

In operation, the character and relativel f idjuStment'of 'the cam b is such that the roller rl will be lifted juist prior to the in` 75 Stunt. when thi*Ik front' edge 'of the.' moving'l :dieet l liSto-he taken hold oflby gripping :ncclmnisrn Adapted to reach throughthe wp f3 in the manner. well known t0the-art.

' tlv the. roller (lg hits `pz'issedover the 3o Paper sheetS u relzrctiigdly. st ctche by the operation of contiiiiiorly Korps in tho sheet utiliz-e afsuction force of S'uici ntfdcgijoby' 110` compelling a series of parano Y o v l of orceto traver'so'thopassingfhegt in a; diagonal direction. VTh?zilinedv 'nes 0forcr. exerted hy tho'gilined'` nozzles V :'1C ':ord ingly exert :i uniforin lineal (citi n ully' :ici-oss the pasing sheet. Y

My invention bcingithus described with. snllicicnt thoroughness, vwhat I dsire to sccurc hv Letters Patent and thereforeclaim l f 12o sperificiilly` is: A l Y l. The method of conditioning l paper giri-punitor-i' to printing'thereon` which conin reol\ing a sheet, and causing L wirtion fori-c to he erertcd irl thc plane 0f- .wucrcssirc diagonally extending 'portions'of 125 thc painf; sheet whereby toboth clan and; l stretch thc same.

2. 'Tho method of conditioning paper preparatory to printing thereon`v which con` Y sists in conveying :i sheet and causing a sil- 130 ifdiago'- 115,

tion force to-be exerted thereagainst along a line extending diagonally within the plane of the passing portion of thesheet.

3. The method of conditioning paper preparatory to printing thereon, which consi'stsin conveying a sheetin a given direction and opposing a lineal suction thereacross, such suction force being exerted inw a direction oblique with respect to the line of opposition and within the plane of the sheet whereby -to iron out and stretch .the

` Same.

4. The method of conditioning paper preparatory to printing thereon, which consists in drawing a sheet in -a given direction and causing an elongated suction effect to be opposed thereacross in a direction oblique -relative to the direction of travel and in the preparatory to printing thereon, which consists in drawing a sheet in a given direction and causing a suction force to vbe applied to the sheet and along a line oblique with 'reference to the direction of. movement and lying in the plane of the sheet. y 7. The method of conditioning paper.

preparatory to printing thereon, which consists in conveying a sheet in a given direction,I brushing such sheet from one side .across to the other, and thereafter exercising a retarding effect thereacross such that a smooth continuity of travel is maintained while effectively stretching said sheet.

8. The method of conditioning paper Apreparatory to printing thereon which consists in conveying a sheet along with moving surface and causing a retarding airicurrent to be exerted solely in opposition to one side, and along a line oblique relative to the direction of travel, and inthe plane of such sheet.

9. The method of conditioning paper preparatory 'to printing thereon, which consists in `rapidly conveying a sheet 'in a given direction on a moving surface and momentarily causing a portion of said sheet along a linenoblique with reference to its direction of movement to leave and return to such surface whereby to stretch the same.

1,0. The method of conditioningv paper preparatory to printing thereon, which consists in rapidly conveying a sheet in a given direction on a moving surface and continuously opposing a suction effect sov as to occasion a wave-like action on. the part of said sheet relatively to the movement of said surface along a line oblique with reference to its direction and substantially in the plane of movement. l

l1. The method of conditioning paper preparatory to print-ing thereon, which consists in conveying 'a sheet-'in a given direction, brushing such sheet, and causing a suction effect to be opposed thereto in a line of the passing sheet, in a direction oblique relative to the direction of travel of such sheet and in suflicient proximity to stretch said sheet.

12. The method` of conditioning paper preparatory to printing thereon, which coni sists in drawing a sheet in a given direction,

and exerting a suction effect within the plane of one side of 'Such sheet and along. a (ixed line which is oblique with reference to the travel of such sheet.

13. The method .of conditioning paper preparatory. to printing thereon, which consists in drawing asheet in a given ,'direction, and exerting diagonal suction eil'octs on a series of lines in the plane-of said Sheet, of fixed relation to each other and with respect to the direction of movement of said sheet.

14. The. method ofwconditioning paper.

preparatory to printing thereon which com., sists in drawing a sheetin a given direction. and exerting a suction elfe-ct progressively along a diagonal line in the plane of a pass-v ing portion of saidl sheet whereby to stretch said sheet without disalinin the-same.

l5. The method of con itioning paper preparatory to printing thereon, which consists inv conveying a sheet, and causing a suction force of sulicient intensity to be ex erted along a given ."diagonal line at only one side of said sheetand in the plane ofa* passing portion thereof whereby to smooth out such portion. Y

16. The method of. conditioning paper preparatory to printing thereon, which consists in conveying a sheet in a given direction and causing a series of diagonal air currents to be exerted progressively thereacross whereby to accomplish an ironingout e'ect, and simultaneously to clean kand stretch such sheet. .r

17.v The method of conditioning paper prepa rattory to printing thereon, which consists in conveying a sheet in a given direction and causing an' air current to be exerted diagonally within the plane ofthe exposed surface of the sheet whereby progressively to stretch without disalining the same.

Signed by nie, this 20th day of December, 1913.

A JAMES E. DOYLE.

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